• Asia pacific journal of information systems
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• v.11 no.3
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• pp.91-104
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• 2001

Like other communication networks, the Internet is establishing and reinforcing connections between market participants. By adapting to these networks, market participants are able to obtain the power of network to create new benefits in on-line markets. In this paper, we develop three stage non-cooperative game models to analyze the community related business market in electronic commerce where network externalities are present. It is found that, regardless of its market share, individual firm in a market tends to favor a community network. The analysis also shows there exist some possibilities that these community networks can trap the market in an inferior state when better alternatives are available to yield greater social welfare.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.7
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• pp.349-356
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• 2021

This study comprehensively investigates whether there is an impact of risk, size, profitability, earnings per share, dividend yield, and book-to-market equity on the stock prices of Jordanian banks listed on the Amman Stock Exchange (ASE) for the period 2006-2018. To mitigate endogeneity concerns and to control for within-bank dynamics, panel data fixed effects estimations are used. This study shows that size (SIZE), profitability (ROA), dividend yield (DY) and book-to-market equity (BE/ME) ratios are statistically significant determinants of stock prices. The risk (RISK) factor measured by volatility of ROA has a positive and significant effect on the stock prices, while earnings per share has minimum influence on the stock prices. The results show that ROA has a significant and positive effect and provides the largest effect among all variables used in this study, while the RISK factor has a positive and significant effect. In contrast, SIZE, DY, and BE/ME have a significant negative effect on stock prices. The paper presented new evidence showing that ROA is a better determinant of stock prices in Jordanian banks, and RISK significantly affects stock prices. The researcher recommends using a factor of profitability represented by ROA which has a significant positive effect on the stock prices in Jordanian banks and applying the ROA variable to other sectors.

• The Korean Journal of Food And Nutrition
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• v.33 no.6
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• pp.710-720
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• 2020

This study was conducted to compare the quality characteristics of firm tofu (coagulant calcium chloride, CaCl2 used) made from eight imported and four domestic soybeans selling in Korean markets. The 100-seed weight of soybeans imported from China and Seonpung cultivated in Korea was the highest at 33.23 g and 32.51 g, respectively. Soybeans imported from the USA (bulk type) showed the lowest at 16.12 g, followed by Ukraine at 16.94 g, and Brazil at 18.51 g. The range of protein and fat in the 12 soybeans was 37.08~41.36% and 18.35~22.17%, respectively. The isoflavone contents were the highest in Daepung2 cultivated in Korea at 3,764.10 ㎍/g and the lowest in soybeans imported from Brazil at 1,439.85 ㎍/g. Tofu yield among the samples was in the following order: Seonpung (235.2%), China (232.0%) Daepung2 (228.7%), Daechan (225.7%), and Brazil (208%). Tofu made with soybeans cultivated in Korea (including from China) showed a higher yield compared to that made from soybeans from seven other countries. In the analysis of the correlation of quality factors of tofu, the hardness of the tofu was correlated with 100-seed weight (r=0.676⁎) and protein content of the soybeans (r=0.837⁎⁎). Tofu yield was correlated with 100-seed weight (r=0.748⁎⁎) and protein content of the soybeans (r=0.583⁎).

• Culinary science and hospitality research
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• v.23 no.6
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• pp.99-109
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• 2017

This study aims to investigate the impacts of marketing motive (public- vs. firm-interest) and ad appeal (soft- vs. hard-sell) types on consumers' ad attitudes and behavioral intention in hotels' green advertising. From 711 US respondents, a multivariate analysis of covariance (MANCOVA) was employed to test main effects of marketing motive and ad appeal types on ad recipients' affective and cognitive ad attitudes, while controlling their environmental consciousness. Further, the study conducted a multiple regressions analysis to examine the influence of ad attitudes on respondents' intention to visit the hotel. The study found that a public-serving claim can yield more positive affective ad attitude than a firm-interested claim, regardless of ad image type (soft- or hard-sell image). The result also revealed that a soft-sell ad image can elicit more positive affective ad attitude than a hard-sell one. On the other hand, the study showed that consumers' affective and cognitive ad attitudes are significant predictors of behavioral intention (i.e., visit intention). The study provided theoretical and managerial implications for hospitality researchers and hotel marketers to effectively design hotels' green advertising to ultimately increase consumers' visit intention.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.22 no.50
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• pp.105-125
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• 1999

The results of analysis on foreign exchange market, stock and financial market after January of 1997 are that foreign exchange market will be affected by stock and financial market volatility about 1999. This means that stock and financial market are more stable than foreign exchange market. This also is supported by ‘financial market forecast of 1999 in Daewoo Economic Research Institute’. After won/dollar (end of period) will be increasing in 1,430 at second quarter of 1999, this is to downward 1,200 fourth quarter of 1999. This is somewhat based on government's higher exchange rate policy. But, after yield of corporate bond is to 11.0% at first quarter of 1999, this will be stable to 10.2% at fourth quarter. During the first quarter of 1999, yield of corporate bond is to somewhat increasing through sovereign debt and public bonds, technical adjustment of interest rate. After this, yield of corporate bond will be stable according to stability of price, magnification of money supply, restucturing of firms. So, stock market is favorably affected by stability of financial market. But, the pension and fund of USA, i.e., long-term portfolio investment fund, are injected through international firm's management. It is included by openness of audit, fair market about foreign investors. Finally, Moody's strong rating on the won-denominated bonds suggest that Korea's sovereign debt ratings could be restored to an investment grade in the near future. It sequentially includes inflow of foreign portfolio investment fund, fall of won/dollar foreign exchange rate (appreciation of won) and stability of yield of corporate bond.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.1-6
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• 2008

Organizations are increasingly adopting Knowledge Management Systems (KMS) to effectively manage knowledge within the organization and realize firm and operational level benefits. However, many KMS implementations fail to yield desired outcomes due to the lack of understanding of the antecedent of successful knowledge management. Prior studies have established that organizational cultural values are one of the key enablers of knowledge management. We develop a computational model of organizational knowledge processes and employ simulations to examine the impact of KMS in different organizational cultural settings. We find that cultural values that govern the employees' predisposition towards seeking knowledge from others have a greater influence on KMS effectiveness than those that govern the employees' attitudes towards sharing their knowledge with others. We also find that organizations with cultures that foster high levels knowledge sharing behaviors can expect performance gains if KMS implementations incorporate knowledge seeking activities into the employees' work processes.

• STI Policy Review
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• v.3 no.2
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• pp.47-65
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• 2012

Appropriation is essential for innovators to succeed. Traditionally, among various appropriation mechanisms, patents and secrecy have received attention, and the differential role of patents has been highlighted according to different industries or sectors. These discussions give a rough idea, however, and do not yield concrete directives for strategies in the context of innovation management. This paper describes an analysis of the effect of a firm's position within the value chain and the objectives of innovative activities with appropriation mechanisms. Multivariate analysis of diverse appropriation mechanisms using Korean innovation survey data revealed a specific combination of mechanisms and significant determinants in the context of objectives of innovative activities.

• Journal of Korea Water Resources Association
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• v.45 no.4
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• pp.361-371
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• 2012

For a basin with existing reservoirs, the necessity of additional water demands has been proposed, as well as a reevaluation of existing reservoir yield has been proposed. The objective of this study is to reevaluate a multipurpose reservoir yield and to assess the possibility of additional water supply according to increase of downstream water demands. Andong and Imha Reservoirs are selected for reevaluation. The standard reservoir operation rule model and the HEC-ResSim model were used for reservoir simulation for 30 years (1979~2008). In this study, water supply reliability was set up as 96.7% and 95.0% with yearly and monthly evaluating unit. In case of 95% water supply reliability with yearly evaluating unit, water supply capability of Andong reservoir was evaluated as 893MCM and water supply capability of Imha reservoir was evaluated as 382MCM, and that results showed that water yields for both reservoirs are less than the original designed yields.

• The Korean Journal of Financial Management
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• v.25 no.2
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• pp.191-213
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• 2008

This study tests and reconfirms the wealth transfer of mergers and acquisitions(M&As) by examining the changes in and the relationship between shareholder and bondholder wealth after the announcements of M&As for the publicly listed firms in Korea Stock Exchange and KOSDAQ market during $1999{\sim}2006$. The change in shareholder wealth is measured by the Cumulative Abnormal Return(CAR) at the M&A announcements, and the change in bondholder wealth is calculated using the Yield Spread Change(YSC) and the change in acquiring firms' credit ratings. The empirical tests show that the CAR of 344 sample acquiring firms at the announcement is 3.59%, which confirms results of the prior research on M&As in Korean market. The average YSC for 35 sample acquiring firms between $2001{\sim}2006$ proves to be negative when we use the yield spread of firms with comparable credit ratings as a benchmark, which means that the acquiring firms' bondholders gain with the announcements of M&As. We find the same result using another benchmark-the yield spread of government bonds. The improvement in the acquiring firms' credit ratings one year after the M&As also indicates that the M&As, on average, increase bondholder wealth. Our test results are consistent with those of the existing studies on the effect of bondholder wealth after the M&As in the United States, which shows that the bondholder wealth increases after the M&As. We do not find the evidence that there is a wealth transfer from the acquiring firms' bondholders to the shareholders after the M&A announcements. Rather, this study confirms that the wealth of the acquiring firms' bondholders increases in the M&As in Korea.

• Proceedings of the Korea Water Resources Association Conference
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• 2005.05b
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• pp.294-298
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• 2005

신뢰도를 이용하여 댐의 물 공급 안전도를 정의하였다. 그리고 보장 공급량 분석에 의한 댐의 물 공급 안전도 평가 절차를 제안하였고, 소양강댐과 충주댐의 물 공급 안전도를 평가하였다. 여러 묶음의 월 유출 시계열을 모의발생시키기 위하여 SAMS-2000을 사용하였고, 보장공급량 결정을 위한 저수지 모의운영에는 HEC-5가 사용되었다. 50년 계획 기간에 대하여 설계 유출자료에 의한 소양강댐 보장 공급량의 물 공급 안전도는 $80.5\%$로 평가되었고, 준공 후 기록 유입량에 의한 보장 공급량의 물 공급 안전도는 $53.7\%$였다. 기록 유입량 자료의 보장 공급량(15.85억 $M^3/yr$)을 계획 공급량으로 하면 연간 0.94억 $m^3 $의 용수를 추가 공급할 수 있다. 충주댐의 설계 유출자료에 의한 보장 공급량 34.22억 $M^3/yr$를 계획 공급량으로 하면 모든 시계열에 대하여 반드시 물 부족이 발생하였다. 이는 설계 당시 유입량의 과대평가에 기인한다. 제안된 절차를 적용하면 보다 객관적으로 댐의 물 공급 안전도를 평가할 수 있다.